原文:https://blog.csdn.net/tdk133/article/details/7241764
个人觉得有用,用作记录,感谢原文博主!
通过AlertDialog.Builder类的setSingleChoiceItems方法可以创建带单按钮的列表:方法如下:
1、从资源文件中装载数据:
public Builder setSingleChoiceItems(int itemsId, int checkedItem, final OnClickListener listener)
2、从数据集中装载数据
public Builder setSingleChoiceItems(Cursor cursor, int checkedItem, String labelColumn, final OnClickListener listener)
3、从字符串数组中装载数据
public Builder setSingleChoiceItems(CharSequence[] items, int checkedItem, final OnClickListener listener)
4、从ListAdapter对象中装载数据
public Builder setSingleChoiceItems(ListAdapter adpater, int checkedItem, final OnClickListener listener)
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package com.js.sinlgechoiceitemstest;
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import android.app.Activity;
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import android.app.AlertDialog;
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import android.content.DialogInterface;
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import android.os.Bundle;
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import android.os.Handler;
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import android.view.View;
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import android.view.View.OnClickListener;
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import android.widget.Button;
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import android.widget.Toast;
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public class SingleChoiceItemsTest extends Activityimplements OnClickListener
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{
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private String[] province = new String[] { "上海", "北京", "湖南", "湖北", "海南" };
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private Button btnSingleChoiceList;
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// 单击事件对象的实例
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private ButtonOnClick buttonOnClick = new ButtonOnClick( 1);
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/** Called when the activity is first created. */
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public void onCreate(Bundle savedInstanceState)
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{
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main);
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btnSingleChoiceList = (Button) findViewById(R.id.btnSingleChoice);
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btnSingleChoiceList.setOnClickListener( this);
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}
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public void onClick(View v)
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{
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showSingleChoiceButton();
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}
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// 在单选选项中显示 确定和取消按钮
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//buttonOnClickg变量的数据类型是ButtonOnClick,一个单击事件类
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private void showSingleChoiceButton()
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{
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AlertDialog.Builder builder = new AlertDialog.Builder( this);
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builder.setTitle( "请选择省份");
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builder.setSingleChoiceItems(province, 0, buttonOnClick);
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builder.setPositiveButton( "确定", buttonOnClick);
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builder.setNegativeButton( "取消", buttonOnClick);
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builder.show();
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}
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private class ButtonOnClick implements DialogInterface.OnClickListener
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{
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private int index; // 表示选项的索引
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public ButtonOnClick(int index)
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{
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this.index = index;
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}
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public void onClick(DialogInterface dialog,int which)
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{
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// which表示单击的按钮索引,所有的选项索引都是大于0,按钮索引都是小于0的。
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if (which >= 0)
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{
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//如果单击的是列表项,将当前列表项的索引保存在index中。
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//如果想单击列表项后关闭对话框,可在此处调用dialog.cancel()
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//或是用dialog.dismiss()方法。
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index = which;
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}
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else
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{
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//用户单击的是【确定】按钮
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if (which == DialogInterface.BUTTON_POSITIVE)
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{
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//显示用户选择的是第几个列表项。
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final AlertDialog ad = new AlertDialog.Builder(
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SingleChoiceItemsTest. this).setMessage(
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"你选择的地区是:" + index + ":" + province[index]).show();
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//五秒钟后自动关闭。
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Handler hander = new Handler();
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Runnable runnable = new Runnable()
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{
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public void run()
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{
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ad.dismiss();
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}
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};
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hander.postDelayed(runnable, 5 * 1000);
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}
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//用户单击的是【取消】按钮
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else if (which == DialogInterface.BUTTON_NEGATIVE)
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{
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Toast.makeText(SingleChoiceItemsTest. this, "你没有选择任何东西",
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Toast.LENGTH_LONG);
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}
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}
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}
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}
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}